./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 10:05:31,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 10:05:31,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 10:05:31,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 10:05:31,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 10:05:31,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 10:05:31,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 10:05:31,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 10:05:31,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 10:05:31,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 10:05:31,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 10:05:31,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 10:05:31,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 10:05:31,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 10:05:31,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 10:05:31,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 10:05:31,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 10:05:31,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 10:05:31,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 10:05:31,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 10:05:31,439 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 10:05:31,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 10:05:31,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 10:05:31,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 10:05:31,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 10:05:31,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 10:05:31,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 10:05:31,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 10:05:31,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 10:05:31,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 10:05:31,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 10:05:31,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 10:05:31,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 10:05:31,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 10:05:31,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 10:05:31,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 10:05:31,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 10:05:31,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 10:05:31,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 10:05:31,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 10:05:31,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 10:05:31,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 10:05:31,455 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 10:05:31,478 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 10:05:31,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 10:05:31,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 10:05:31,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 10:05:31,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 10:05:31,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 10:05:31,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 10:05:31,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 10:05:31,481 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 10:05:31,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 10:05:31,482 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 10:05:31,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 10:05:31,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 10:05:31,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 10:05:31,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 10:05:31,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 10:05:31,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 10:05:31,483 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 10:05:31,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 10:05:31,483 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 10:05:31,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 10:05:31,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 10:05:31,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 10:05:31,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 10:05:31,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:05:31,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 10:05:31,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 10:05:31,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 10:05:31,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 10:05:31,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 10:05:31,485 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 10:05:31,485 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 10:05:31,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 10:05:31,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 [2022-07-12 10:05:31,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 10:05:31,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 10:05:31,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 10:05:31,704 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 10:05:31,704 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 10:05:31,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-07-12 10:05:31,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb16eb97e/e4f38e08fe9149e28db15e50c618bbd3/FLAG66077d41c [2022-07-12 10:05:32,165 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 10:05:32,166 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-07-12 10:05:32,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb16eb97e/e4f38e08fe9149e28db15e50c618bbd3/FLAG66077d41c [2022-07-12 10:05:32,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb16eb97e/e4f38e08fe9149e28db15e50c618bbd3 [2022-07-12 10:05:32,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 10:05:32,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 10:05:32,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 10:05:32,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 10:05:32,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 10:05:32,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:05:32" (1/1) ... [2022-07-12 10:05:32,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27417bbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:05:32, skipping insertion in model container [2022-07-12 10:05:32,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:05:32" (1/1) ... [2022-07-12 10:05:32,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 10:05:32,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 10:05:32,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-07-12 10:05:32,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:05:32,890 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 10:05:32,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-07-12 10:05:32,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:05:32,992 INFO L208 MainTranslator]: Completed translation [2022-07-12 10:05:32,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:05:32 WrapperNode [2022-07-12 10:05:32,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 10:05:32,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 10:05:32,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 10:05:32,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 10:05:32,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:05:32" (1/1) ... [2022-07-12 10:05:33,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:05:32" (1/1) ... [2022-07-12 10:05:33,056 INFO L137 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 193 [2022-07-12 10:05:33,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 10:05:33,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 10:05:33,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 10:05:33,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 10:05:33,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:05:32" (1/1) ... [2022-07-12 10:05:33,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:05:32" (1/1) ... [2022-07-12 10:05:33,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:05:32" (1/1) ... [2022-07-12 10:05:33,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:05:32" (1/1) ... [2022-07-12 10:05:33,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:05:32" (1/1) ... [2022-07-12 10:05:33,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:05:32" (1/1) ... [2022-07-12 10:05:33,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:05:32" (1/1) ... [2022-07-12 10:05:33,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 10:05:33,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 10:05:33,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 10:05:33,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 10:05:33,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:05:32" (1/1) ... [2022-07-12 10:05:33,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:05:33,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:05:33,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 10:05:33,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 10:05:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 10:05:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-12 10:05:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 10:05:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 10:05:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 10:05:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-07-12 10:05:33,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-07-12 10:05:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-07-12 10:05:33,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-07-12 10:05:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-07-12 10:05:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-07-12 10:05:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-07-12 10:05:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-07-12 10:05:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 10:05:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-12 10:05:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 10:05:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 10:05:33,184 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-12 10:05:33,269 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 10:05:33,270 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 10:05:33,648 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 10:05:33,915 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 10:05:33,916 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 10:05:33,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:05:33 BoogieIcfgContainer [2022-07-12 10:05:33,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 10:05:33,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 10:05:33,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 10:05:33,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 10:05:33,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 10:05:32" (1/3) ... [2022-07-12 10:05:33,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2cebb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:05:33, skipping insertion in model container [2022-07-12 10:05:33,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:05:32" (2/3) ... [2022-07-12 10:05:33,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2cebb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:05:33, skipping insertion in model container [2022-07-12 10:05:33,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:05:33" (3/3) ... [2022-07-12 10:05:33,924 INFO L111 eAbstractionObserver]: Analyzing ICFG mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-07-12 10:05:33,928 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-12 10:05:33,934 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 10:05:33,934 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 10:05:33,934 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-12 10:05:33,992 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-12 10:05:34,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 139 transitions, 298 flow [2022-07-12 10:05:34,082 INFO L129 PetriNetUnfolder]: 2/135 cut-off events. [2022-07-12 10:05:34,082 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-12 10:05:34,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-07-12 10:05:34,086 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 139 transitions, 298 flow [2022-07-12 10:05:34,091 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 135 transitions, 282 flow [2022-07-12 10:05:34,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 10:05:34,110 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7e63bc1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@285a372b [2022-07-12 10:05:34,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-12 10:05:34,120 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2022-07-12 10:05:34,120 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-12 10:05:34,121 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:05:34,121 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:05:34,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-12 10:05:34,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:05:34,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1261973162, now seen corresponding path program 1 times [2022-07-12 10:05:34,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:05:34,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279886693] [2022-07-12 10:05:34,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:05:34,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:05:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:05:34,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:05:34,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:05:34,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279886693] [2022-07-12 10:05:34,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279886693] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:05:34,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:05:34,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 10:05:34,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332458144] [2022-07-12 10:05:34,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:05:34,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 10:05:34,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:05:34,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 10:05:34,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 10:05:34,323 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 139 [2022-07-12 10:05:34,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:34,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:05:34,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 139 [2022-07-12 10:05:34,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:05:34,480 INFO L129 PetriNetUnfolder]: 162/623 cut-off events. [2022-07-12 10:05:34,480 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-07-12 10:05:34,483 INFO L84 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 623 events. 162/623 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3460 event pairs, 132 based on Foata normal form. 46/631 useless extension candidates. Maximal degree in co-relation 871. Up to 191 conditions per place. [2022-07-12 10:05:34,486 INFO L132 encePairwiseOnDemand]: 134/139 looper letters, 18 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2022-07-12 10:05:34,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 139 transitions, 339 flow [2022-07-12 10:05:34,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 10:05:34,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-12 10:05:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2022-07-12 10:05:34,497 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9448441247002398 [2022-07-12 10:05:34,497 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2022-07-12 10:05:34,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2022-07-12 10:05:34,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:05:34,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2022-07-12 10:05:34,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:34,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:34,507 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:34,508 INFO L186 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 394 transitions. [2022-07-12 10:05:34,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 139 transitions, 339 flow [2022-07-12 10:05:34,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 139 transitions, 332 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-12 10:05:34,513 INFO L242 Difference]: Finished difference. Result has 142 places, 131 transitions, 274 flow [2022-07-12 10:05:34,515 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2022-07-12 10:05:34,517 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2022-07-12 10:05:34,517 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 274 flow [2022-07-12 10:05:34,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:34,518 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:05:34,518 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:05:34,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 10:05:34,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-12 10:05:34,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:05:34,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1699652514, now seen corresponding path program 1 times [2022-07-12 10:05:34,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:05:34,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689826057] [2022-07-12 10:05:34,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:05:34,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:05:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:05:34,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:05:34,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:05:34,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689826057] [2022-07-12 10:05:34,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689826057] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:05:34,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:05:34,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 10:05:34,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5179090] [2022-07-12 10:05:34,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:05:34,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 10:05:34,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:05:34,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 10:05:34,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 10:05:34,724 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-07-12 10:05:34,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:34,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:05:34,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-07-12 10:05:34,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:05:39,191 INFO L129 PetriNetUnfolder]: 19707/42016 cut-off events. [2022-07-12 10:05:39,191 INFO L130 PetriNetUnfolder]: For 1610/1610 co-relation queries the response was YES. [2022-07-12 10:05:39,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70690 conditions, 42016 events. 19707/42016 cut-off events. For 1610/1610 co-relation queries the response was YES. Maximal size of possible extension queue 1831. Compared 452738 event pairs, 4318 based on Foata normal form. 0/41093 useless extension candidates. Maximal degree in co-relation 70628. Up to 10076 conditions per place. [2022-07-12 10:05:39,445 INFO L132 encePairwiseOnDemand]: 122/139 looper letters, 37 selfloop transitions, 13 changer transitions 102/239 dead transitions. [2022-07-12 10:05:39,446 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 239 transitions, 786 flow [2022-07-12 10:05:39,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 10:05:39,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-12 10:05:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1077 transitions. [2022-07-12 10:05:39,450 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8609112709832134 [2022-07-12 10:05:39,451 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1077 transitions. [2022-07-12 10:05:39,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1077 transitions. [2022-07-12 10:05:39,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:05:39,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1077 transitions. [2022-07-12 10:05:39,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.66666666666667) internal successors, (1077), 9 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:39,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:39,457 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:39,457 INFO L186 Difference]: Start difference. First operand has 142 places, 131 transitions, 274 flow. Second operand 9 states and 1077 transitions. [2022-07-12 10:05:39,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 239 transitions, 786 flow [2022-07-12 10:05:39,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 239 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-12 10:05:39,465 INFO L242 Difference]: Finished difference. Result has 156 places, 125 transitions, 388 flow [2022-07-12 10:05:39,465 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=388, PETRI_PLACES=156, PETRI_TRANSITIONS=125} [2022-07-12 10:05:39,466 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 10 predicate places. [2022-07-12 10:05:39,466 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 125 transitions, 388 flow [2022-07-12 10:05:39,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:39,467 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:05:39,467 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:05:39,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 10:05:39,468 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-12 10:05:39,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:05:39,469 INFO L85 PathProgramCache]: Analyzing trace with hash -699640547, now seen corresponding path program 1 times [2022-07-12 10:05:39,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:05:39,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808685674] [2022-07-12 10:05:39,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:05:39,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:05:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:05:39,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:05:39,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:05:39,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808685674] [2022-07-12 10:05:39,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808685674] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:05:39,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:05:39,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 10:05:39,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218787789] [2022-07-12 10:05:39,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:05:39,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 10:05:39,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:05:39,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 10:05:39,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 10:05:39,696 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-07-12 10:05:39,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 125 transitions, 388 flow. Second operand has 7 states, 7 states have (on average 106.57142857142857) internal successors, (746), 7 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:39,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:05:39,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-07-12 10:05:39,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:05:42,896 INFO L129 PetriNetUnfolder]: 13238/22639 cut-off events. [2022-07-12 10:05:42,896 INFO L130 PetriNetUnfolder]: For 37987/38059 co-relation queries the response was YES. [2022-07-12 10:05:42,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68802 conditions, 22639 events. 13238/22639 cut-off events. For 37987/38059 co-relation queries the response was YES. Maximal size of possible extension queue 1133. Compared 183609 event pairs, 2330 based on Foata normal form. 532/22672 useless extension candidates. Maximal degree in co-relation 68724. Up to 5647 conditions per place. [2022-07-12 10:05:43,024 INFO L132 encePairwiseOnDemand]: 127/139 looper letters, 58 selfloop transitions, 9 changer transitions 130/284 dead transitions. [2022-07-12 10:05:43,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 284 transitions, 1674 flow [2022-07-12 10:05:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 10:05:43,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-12 10:05:43,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1524 transitions. [2022-07-12 10:05:43,028 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8433868289983398 [2022-07-12 10:05:43,028 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1524 transitions. [2022-07-12 10:05:43,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1524 transitions. [2022-07-12 10:05:43,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:05:43,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1524 transitions. [2022-07-12 10:05:43,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.23076923076923) internal successors, (1524), 13 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:43,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:43,035 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:43,047 INFO L186 Difference]: Start difference. First operand has 156 places, 125 transitions, 388 flow. Second operand 13 states and 1524 transitions. [2022-07-12 10:05:43,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 284 transitions, 1674 flow [2022-07-12 10:05:43,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 284 transitions, 1560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-12 10:05:43,083 INFO L242 Difference]: Finished difference. Result has 158 places, 130 transitions, 478 flow [2022-07-12 10:05:43,083 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=478, PETRI_PLACES=158, PETRI_TRANSITIONS=130} [2022-07-12 10:05:43,084 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 12 predicate places. [2022-07-12 10:05:43,084 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 130 transitions, 478 flow [2022-07-12 10:05:43,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.57142857142857) internal successors, (746), 7 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:43,085 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:05:43,085 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:05:43,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 10:05:43,085 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-12 10:05:43,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:05:43,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1311624956, now seen corresponding path program 1 times [2022-07-12 10:05:43,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:05:43,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75176004] [2022-07-12 10:05:43,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:05:43,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:05:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:05:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:05:43,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:05:43,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75176004] [2022-07-12 10:05:43,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75176004] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:05:43,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:05:43,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 10:05:43,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863391946] [2022-07-12 10:05:43,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:05:43,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 10:05:43,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:05:43,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 10:05:43,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 10:05:43,196 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-07-12 10:05:43,197 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 130 transitions, 478 flow. Second operand has 7 states, 7 states have (on average 106.71428571428571) internal successors, (747), 7 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:43,197 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:05:43,197 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-07-12 10:05:43,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:05:45,270 INFO L129 PetriNetUnfolder]: 8972/16036 cut-off events. [2022-07-12 10:05:45,271 INFO L130 PetriNetUnfolder]: For 46172/46175 co-relation queries the response was YES. [2022-07-12 10:05:45,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53390 conditions, 16036 events. 8972/16036 cut-off events. For 46172/46175 co-relation queries the response was YES. Maximal size of possible extension queue 732. Compared 130616 event pairs, 1200 based on Foata normal form. 330/16130 useless extension candidates. Maximal degree in co-relation 53304. Up to 3520 conditions per place. [2022-07-12 10:05:45,382 INFO L132 encePairwiseOnDemand]: 125/139 looper letters, 55 selfloop transitions, 15 changer transitions 106/263 dead transitions. [2022-07-12 10:05:45,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 263 transitions, 1658 flow [2022-07-12 10:05:45,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 10:05:45,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-12 10:05:45,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1502 transitions. [2022-07-12 10:05:45,386 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8312119535141118 [2022-07-12 10:05:45,386 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1502 transitions. [2022-07-12 10:05:45,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1502 transitions. [2022-07-12 10:05:45,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:05:45,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1502 transitions. [2022-07-12 10:05:45,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.53846153846153) internal successors, (1502), 13 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:45,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:45,392 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:45,392 INFO L186 Difference]: Start difference. First operand has 158 places, 130 transitions, 478 flow. Second operand 13 states and 1502 transitions. [2022-07-12 10:05:45,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 263 transitions, 1658 flow [2022-07-12 10:05:45,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 263 transitions, 1577 flow, removed 38 selfloop flow, removed 4 redundant places. [2022-07-12 10:05:45,577 INFO L242 Difference]: Finished difference. Result has 169 places, 137 transitions, 624 flow [2022-07-12 10:05:45,577 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=624, PETRI_PLACES=169, PETRI_TRANSITIONS=137} [2022-07-12 10:05:45,578 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 23 predicate places. [2022-07-12 10:05:45,578 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 137 transitions, 624 flow [2022-07-12 10:05:45,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.71428571428571) internal successors, (747), 7 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:45,579 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:05:45,579 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:05:45,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 10:05:45,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-12 10:05:45,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:05:45,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1348306673, now seen corresponding path program 1 times [2022-07-12 10:05:45,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:05:45,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107994395] [2022-07-12 10:05:45,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:05:45,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:05:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:05:45,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:05:45,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:05:45,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107994395] [2022-07-12 10:05:45,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107994395] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:05:45,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:05:45,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 10:05:45,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267521355] [2022-07-12 10:05:45,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:05:45,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 10:05:45,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:05:45,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 10:05:45,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 10:05:45,675 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-07-12 10:05:45,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 137 transitions, 624 flow. Second operand has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:45,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:05:45,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-07-12 10:05:45,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:05:50,633 INFO L129 PetriNetUnfolder]: 21401/37736 cut-off events. [2022-07-12 10:05:50,633 INFO L130 PetriNetUnfolder]: For 54787/72336 co-relation queries the response was YES. [2022-07-12 10:05:50,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91890 conditions, 37736 events. 21401/37736 cut-off events. For 54787/72336 co-relation queries the response was YES. Maximal size of possible extension queue 2427. Compared 353047 event pairs, 1502 based on Foata normal form. 371/35878 useless extension candidates. Maximal degree in co-relation 91795. Up to 11388 conditions per place. [2022-07-12 10:05:51,035 INFO L132 encePairwiseOnDemand]: 128/139 looper letters, 101 selfloop transitions, 20 changer transitions 0/233 dead transitions. [2022-07-12 10:05:51,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 233 transitions, 1288 flow [2022-07-12 10:05:51,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 10:05:51,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-12 10:05:51,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1227 transitions. [2022-07-12 10:05:51,039 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8827338129496403 [2022-07-12 10:05:51,039 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1227 transitions. [2022-07-12 10:05:51,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1227 transitions. [2022-07-12 10:05:51,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:05:51,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1227 transitions. [2022-07-12 10:05:51,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.7) internal successors, (1227), 10 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:51,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:51,043 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:51,044 INFO L186 Difference]: Start difference. First operand has 169 places, 137 transitions, 624 flow. Second operand 10 states and 1227 transitions. [2022-07-12 10:05:51,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 233 transitions, 1288 flow [2022-07-12 10:05:51,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 233 transitions, 1186 flow, removed 49 selfloop flow, removed 10 redundant places. [2022-07-12 10:05:51,126 INFO L242 Difference]: Finished difference. Result has 165 places, 155 transitions, 707 flow [2022-07-12 10:05:51,126 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=707, PETRI_PLACES=165, PETRI_TRANSITIONS=155} [2022-07-12 10:05:51,127 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 19 predicate places. [2022-07-12 10:05:51,127 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 155 transitions, 707 flow [2022-07-12 10:05:51,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:51,128 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:05:51,128 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:05:51,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 10:05:51,128 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-12 10:05:51,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:05:51,129 INFO L85 PathProgramCache]: Analyzing trace with hash -561857278, now seen corresponding path program 1 times [2022-07-12 10:05:51,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:05:51,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669000970] [2022-07-12 10:05:51,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:05:51,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:05:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:05:51,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:05:51,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:05:51,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669000970] [2022-07-12 10:05:51,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669000970] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:05:51,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:05:51,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 10:05:51,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973156081] [2022-07-12 10:05:51,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:05:51,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 10:05:51,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:05:51,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 10:05:51,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 10:05:51,202 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-07-12 10:05:51,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 155 transitions, 707 flow. Second operand has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:51,203 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:05:51,203 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-07-12 10:05:51,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:05:55,929 INFO L129 PetriNetUnfolder]: 20000/36860 cut-off events. [2022-07-12 10:05:55,930 INFO L130 PetriNetUnfolder]: For 68385/87163 co-relation queries the response was YES. [2022-07-12 10:05:56,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113786 conditions, 36860 events. 20000/36860 cut-off events. For 68385/87163 co-relation queries the response was YES. Maximal size of possible extension queue 2543. Compared 368102 event pairs, 1100 based on Foata normal form. 880/36146 useless extension candidates. Maximal degree in co-relation 113692. Up to 7040 conditions per place. [2022-07-12 10:05:56,381 INFO L132 encePairwiseOnDemand]: 128/139 looper letters, 132 selfloop transitions, 38 changer transitions 0/282 dead transitions. [2022-07-12 10:05:56,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 282 transitions, 1767 flow [2022-07-12 10:05:56,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 10:05:56,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-12 10:05:56,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1600 transitions. [2022-07-12 10:05:56,385 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8854454897620365 [2022-07-12 10:05:56,385 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1600 transitions. [2022-07-12 10:05:56,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1600 transitions. [2022-07-12 10:05:56,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:05:56,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1600 transitions. [2022-07-12 10:05:56,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 123.07692307692308) internal successors, (1600), 13 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:56,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:56,392 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:56,393 INFO L186 Difference]: Start difference. First operand has 165 places, 155 transitions, 707 flow. Second operand 13 states and 1600 transitions. [2022-07-12 10:05:56,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 282 transitions, 1767 flow [2022-07-12 10:05:57,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 282 transitions, 1747 flow, removed 9 selfloop flow, removed 7 redundant places. [2022-07-12 10:05:57,168 INFO L242 Difference]: Finished difference. Result has 176 places, 175 transitions, 980 flow [2022-07-12 10:05:57,168 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=980, PETRI_PLACES=176, PETRI_TRANSITIONS=175} [2022-07-12 10:05:57,168 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 30 predicate places. [2022-07-12 10:05:57,169 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 175 transitions, 980 flow [2022-07-12 10:05:57,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:57,169 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:05:57,169 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:05:57,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 10:05:57,170 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-12 10:05:57,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:05:57,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1184555868, now seen corresponding path program 1 times [2022-07-12 10:05:57,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:05:57,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289232361] [2022-07-12 10:05:57,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:05:57,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:05:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:05:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:05:57,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:05:57,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289232361] [2022-07-12 10:05:57,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289232361] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:05:57,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:05:57,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 10:05:57,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414881463] [2022-07-12 10:05:57,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:05:57,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 10:05:57,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:05:57,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 10:05:57,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-12 10:05:57,269 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-07-12 10:05:57,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 175 transitions, 980 flow. Second operand has 8 states, 8 states have (on average 114.125) internal successors, (913), 8 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:05:57,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:05:57,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-07-12 10:05:57,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:06:02,475 INFO L129 PetriNetUnfolder]: 19424/35999 cut-off events. [2022-07-12 10:06:02,476 INFO L130 PetriNetUnfolder]: For 118855/137425 co-relation queries the response was YES. [2022-07-12 10:06:02,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133008 conditions, 35999 events. 19424/35999 cut-off events. For 118855/137425 co-relation queries the response was YES. Maximal size of possible extension queue 2541. Compared 363802 event pairs, 1040 based on Foata normal form. 635/35061 useless extension candidates. Maximal degree in co-relation 132912. Up to 6854 conditions per place. [2022-07-12 10:06:02,860 INFO L132 encePairwiseOnDemand]: 128/139 looper letters, 128 selfloop transitions, 58 changer transitions 30/328 dead transitions. [2022-07-12 10:06:02,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 328 transitions, 2438 flow [2022-07-12 10:06:02,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 10:06:02,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-07-12 10:06:02,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1972 transitions. [2022-07-12 10:06:02,865 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8866906474820144 [2022-07-12 10:06:02,865 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1972 transitions. [2022-07-12 10:06:02,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1972 transitions. [2022-07-12 10:06:02,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:06:02,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1972 transitions. [2022-07-12 10:06:02,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 123.25) internal successors, (1972), 16 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:06:02,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 139.0) internal successors, (2363), 17 states have internal predecessors, (2363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:06:02,872 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 139.0) internal successors, (2363), 17 states have internal predecessors, (2363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:06:02,872 INFO L186 Difference]: Start difference. First operand has 176 places, 175 transitions, 980 flow. Second operand 16 states and 1972 transitions. [2022-07-12 10:06:02,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 328 transitions, 2438 flow [2022-07-12 10:06:08,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 328 transitions, 2329 flow, removed 45 selfloop flow, removed 4 redundant places. [2022-07-12 10:06:08,458 INFO L242 Difference]: Finished difference. Result has 191 places, 201 transitions, 1340 flow [2022-07-12 10:06:08,458 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1340, PETRI_PLACES=191, PETRI_TRANSITIONS=201} [2022-07-12 10:06:08,459 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 45 predicate places. [2022-07-12 10:06:08,459 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 201 transitions, 1340 flow [2022-07-12 10:06:08,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.125) internal successors, (913), 8 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:06:08,460 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:06:08,460 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:06:08,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 10:06:08,460 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-12 10:06:08,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:06:08,460 INFO L85 PathProgramCache]: Analyzing trace with hash -928883341, now seen corresponding path program 1 times [2022-07-12 10:06:08,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:06:08,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084317506] [2022-07-12 10:06:08,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:06:08,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:06:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:06:08,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:06:08,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:06:08,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084317506] [2022-07-12 10:06:08,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084317506] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:06:08,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:06:08,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 10:06:08,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647759170] [2022-07-12 10:06:08,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:06:08,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 10:06:08,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:06:08,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 10:06:08,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-12 10:06:08,568 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-07-12 10:06:08,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 201 transitions, 1340 flow. Second operand has 9 states, 9 states have (on average 114.22222222222223) internal successors, (1028), 9 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:06:08,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:06:08,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-07-12 10:06:08,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:06:14,110 INFO L129 PetriNetUnfolder]: 19344/35467 cut-off events. [2022-07-12 10:06:14,110 INFO L130 PetriNetUnfolder]: For 120186/137290 co-relation queries the response was YES. [2022-07-12 10:06:14,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131489 conditions, 35467 events. 19344/35467 cut-off events. For 120186/137290 co-relation queries the response was YES. Maximal size of possible extension queue 2484. Compared 353974 event pairs, 1201 based on Foata normal form. 402/34340 useless extension candidates. Maximal degree in co-relation 131388. Up to 4610 conditions per place. [2022-07-12 10:06:14,809 INFO L132 encePairwiseOnDemand]: 128/139 looper letters, 111 selfloop transitions, 63 changer transitions 41/327 dead transitions. [2022-07-12 10:06:14,809 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 327 transitions, 2537 flow [2022-07-12 10:06:14,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 10:06:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-07-12 10:06:14,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2293 transitions. [2022-07-12 10:06:14,813 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8682317304051496 [2022-07-12 10:06:14,813 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2293 transitions. [2022-07-12 10:06:14,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2293 transitions. [2022-07-12 10:06:14,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:06:14,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2293 transitions. [2022-07-12 10:06:14,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 120.6842105263158) internal successors, (2293), 19 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:06:14,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 139.0) internal successors, (2780), 20 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:06:14,821 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 139.0) internal successors, (2780), 20 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:06:14,821 INFO L186 Difference]: Start difference. First operand has 191 places, 201 transitions, 1340 flow. Second operand 19 states and 2293 transitions. [2022-07-12 10:06:14,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 327 transitions, 2537 flow [2022-07-12 10:06:20,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 327 transitions, 2122 flow, removed 161 selfloop flow, removed 16 redundant places. [2022-07-12 10:06:20,321 INFO L242 Difference]: Finished difference. Result has 200 places, 200 transitions, 1168 flow [2022-07-12 10:06:20,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=997, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1168, PETRI_PLACES=200, PETRI_TRANSITIONS=200} [2022-07-12 10:06:20,322 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 54 predicate places. [2022-07-12 10:06:20,322 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 200 transitions, 1168 flow [2022-07-12 10:06:20,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 114.22222222222223) internal successors, (1028), 9 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:06:20,322 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:06:20,322 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:06:20,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 10:06:20,323 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-12 10:06:20,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:06:20,323 INFO L85 PathProgramCache]: Analyzing trace with hash 857185854, now seen corresponding path program 1 times [2022-07-12 10:06:20,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:06:20,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895708312] [2022-07-12 10:06:20,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:06:20,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:06:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:06:20,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:06:20,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:06:20,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895708312] [2022-07-12 10:06:20,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895708312] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:06:20,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:06:20,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 10:06:20,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293829541] [2022-07-12 10:06:20,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:06:20,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 10:06:20,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:06:20,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 10:06:20,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-12 10:06:20,469 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 139 [2022-07-12 10:06:20,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 200 transitions, 1168 flow. Second operand has 10 states, 10 states have (on average 103.4) internal successors, (1034), 10 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:06:20,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:06:20,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 139 [2022-07-12 10:06:20,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:06:24,211 INFO L129 PetriNetUnfolder]: 10763/34174 cut-off events. [2022-07-12 10:06:24,212 INFO L130 PetriNetUnfolder]: For 77136/80227 co-relation queries the response was YES. [2022-07-12 10:06:24,614 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111542 conditions, 34174 events. 10763/34174 cut-off events. For 77136/80227 co-relation queries the response was YES. Maximal size of possible extension queue 4113. Compared 514765 event pairs, 239 based on Foata normal form. 19/31989 useless extension candidates. Maximal degree in co-relation 111434. Up to 3223 conditions per place. [2022-07-12 10:06:24,751 INFO L132 encePairwiseOnDemand]: 115/139 looper letters, 111 selfloop transitions, 100 changer transitions 8/365 dead transitions. [2022-07-12 10:06:24,752 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 365 transitions, 2700 flow [2022-07-12 10:06:24,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 10:06:24,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-12 10:06:24,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1461 transitions. [2022-07-12 10:06:24,756 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8085224128389596 [2022-07-12 10:06:24,756 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1461 transitions. [2022-07-12 10:06:24,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1461 transitions. [2022-07-12 10:06:24,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:06:24,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1461 transitions. [2022-07-12 10:06:24,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 112.38461538461539) internal successors, (1461), 13 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:06:24,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:06:24,761 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:06:24,762 INFO L186 Difference]: Start difference. First operand has 200 places, 200 transitions, 1168 flow. Second operand 13 states and 1461 transitions. [2022-07-12 10:06:24,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 365 transitions, 2700 flow